212685312000 has 832 divisors, whose sum is σ = 820406366208. Its totient is φ = 47923200000.

The previous prime is 212685311983. The next prime is 212685312061. The reversal of 212685312000 is 213586212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1408511925 + ... + 1408512075.

It is an arithmetic number, because the mean of its divisors is an integer number (986065344).

Almost surely, 2^212685312000 is an apocalyptic number.

212685312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212685312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410203183104).

212685312000 is an abundant number, since it is smaller than the sum of its proper divisors (607721054208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212685312000 is a wasteful number, since it uses less digits than its factorization.

212685312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 212685312000 its reverse (213586212), we get a palindrome (212898898212).

The spelling of 212685312000 in words is "two hundred twelve billion, six hundred eighty-five million, three hundred twelve thousand".